Triple
T21125841
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Dublin Area Rapid Transit |
E520553
|
entity |
| Predicate | rollingStock |
P1305
|
FINISHED |
| Object |
IE 8500 Class EMU
The IE 8500 Class EMU is a series of electric multiple unit trains operated by Iarnród Éireann for suburban commuter services in the Dublin area.
|
E1469503
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: IE 8500 Class EMU | Statement: [Dublin Area Rapid Transit, rollingStock, IE 8500 Class EMU]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: IE 8500 Class EMU Context triple: [Dublin Area Rapid Transit, rollingStock, IE 8500 Class EMU]
-
A.
IE 8100 Class EMU
The IE 8100 Class EMU is an electric multiple unit train type that formed the original fleet for Dublin’s DART suburban rail system in Ireland.
-
B.
Class 455 EMU
The Class 455 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban commuter services in the South East of England.
-
C.
Class 83 EMU
The Class 83 EMU is an electric multiple unit train type used by Malaysia’s KTM Komuter suburban rail service for passenger operations.
-
D.
Class 745 EMU
The Class 745 EMU is a modern electric multiple unit train used on regional and intercity services in the UK, built for high-capacity, high-comfort passenger operations.
-
E.
Civia EMU
Civia EMU is a class of electric multiple unit commuter trains used by Spain’s Renfe for suburban and regional passenger services.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: IE 8500 Class EMU Triple: [Dublin Area Rapid Transit, rollingStock, IE 8500 Class EMU]
Generated description
The IE 8500 Class EMU is a series of electric multiple unit trains operated by Iarnród Éireann for suburban commuter services in the Dublin area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: IE 8500 Class EMU Target entity description: The IE 8500 Class EMU is a series of electric multiple unit trains operated by Iarnród Éireann for suburban commuter services in the Dublin area.
-
A.
IE 8100 Class EMU
The IE 8100 Class EMU is an electric multiple unit train type that formed the original fleet for Dublin’s DART suburban rail system in Ireland.
-
B.
Class 455 EMU
The Class 455 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban commuter services in the South East of England.
-
C.
Class 83 EMU
The Class 83 EMU is an electric multiple unit train type used by Malaysia’s KTM Komuter suburban rail service for passenger operations.
-
D.
Class 745 EMU
The Class 745 EMU is a modern electric multiple unit train used on regional and intercity services in the UK, built for high-capacity, high-comfort passenger operations.
-
E.
Civia EMU
Civia EMU is a class of electric multiple unit commuter trains used by Spain’s Renfe for suburban and regional passenger services.
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69e0b50a623881909c0bbaf4f2c055e7 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e72238cf708190a4676c40deea2e46 |
completed | April 21, 2026, 7:07 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a096db6724c8190a5c3886d0784ab03 |
completed | May 17, 2026, 7:26 a.m. |
| NEDg | Description generation | batch_6a096ef9a6388190ba34cbe01863946c |
completed | May 17, 2026, 7:32 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a096f7706448190a1bb61535e0adcd3 |
completed | May 17, 2026, 7:34 a.m. |
Created at: April 16, 2026, 2:56 p.m.